later, the service earlier tonight in newtown, connecticut . the expression -- he coined the expression iron curtain. it was such an evocative description of what happened when he gave the speech that i thought it was important to put that the beginning of the book. >> did you ever think of what he called that the iron curtain? >> there is a long story. it is a theatrical term. there was an iron curtain theaters used to use to prevent fires. churchill used it first in private. >> you know why? >> it was a favor for truman. that is where truman was from. >> let's get a slice of that speech. >> an iron curtain has descended across the continent. behind that line, like all the capitals of the ancient states of central and eastern europe -- berlin, prague, vienna, budapest, belgrade, bucharest. all of these famous cities and the population around them lying in rubble -- lie under the soviet sphere. >> why did you want to talk about this? >> i was inspired in my first book, and while this is in no way a sequel it represents thoughts i had. one thing